Keyboard magnetic shaft

By improving the structural design of the keyboard magnetic switches, the springs can be easily replaced and securely engaged, solving the problem of short keyboard lifespan caused by spring damage, and improving the user experience and service life.

CN223513844UActive Publication Date: 2025-11-04LEQING XUDA ELECTRONICS CO LTD
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Patent Information

Application Number
CN202423303375.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-04
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The internal springs of existing keyboard magnetic switches are difficult to replace when damaged, resulting in a short keyboard lifespan.

Method used

A keyboard magnetic shaft structure was designed, including a fixed magnet, a moving magnet, a slide bar, a metal base, a ball screw, and a ball. The spring can be easily replaced through the cooperation of the hinge base and the hinge chain. The engagement between the ball and the spring is adjusted by the active magnet and the ball screw nut pair to prevent loosening.

Benefits of technology

It extends the lifespan of the keyboard magnetic switches, improves the user's key feel and experience, and ensures the replaceability and stability of the springs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a keyboard magnetic shaft which comprises a key, the key comprises a key, a key core and a spring, the key and the key core are installed and movably matched, and the spring is connected outside the key core in a sleeved mode. Relates to the technical field of keyboards. According to the utility model, the magnetic poles of the fixed magnets fixed in the keys and the movable magnets fixed in the key cores are arranged in a repulsive manner, so that when the movable magnets move downwards until the N poles of the movable magnets are parallel to the N poles of the fixed magnets, the magnetic contact force of the fixed magnets and the movable magnets in each key is the strongest; at the moment, a magnetic paragraph feeling can be generated when a user uses the key, namely, the user can feel strong use conflict so as to improve the feeling of the user, and similarly, after the key core is released, the key core can return upwards under the action of the spring until the key core is reset, and the user can use the key. In the process, the use feeling of the user can be enhanced by utilizing the fixed magnet and the movable magnet, so that the use touch feeling of pressing the keys by the user is enhanced, and the intact use experience is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, specifically a keyboard magnetic shaft. Background Technology

[0002] A magnetic switch is a type of mechanical keyboard switch that primarily uses magnetic materials and sensing technology to detect the state of a key. Compared to traditional mechanical switches, magnetic switches typically offer faster response times and greater durability because they have no physical contact, reducing the likelihood of wear and tear. These switches provide a smoother and quieter typing experience, making them suitable for both gaming and office use.

[0003] Patent CN118448210A discloses a magnetic axis button and a keyboard. Specifically, the patent discloses that "this application provides a magnetic axis button and a keyboard. The magnetic axis button includes: a non-magnetic button cap, a moving magnet that moves with the button cap, a soft magnetic shell or a stationary magnet, and a magnetic sensor module. Through a specific combination design of the moving magnet and the magnetic sensor module, and in conjunction with the combination of the moving magnet, the stationary magnet, or the soft magnetic shell, the magnetic axis button, when pressed, not only makes the signal output by the magnetic sensor module linearly related to the pressing distance, but also enables the button to automatically return to its initial state after being pressed." This achieves the technical effect that "the magnetic axis button provided by this application has a simple structure, high reliability, and can sense large changes in the magnetic field (under the same magnet setting and the same pressing stroke conditions); and the output pressing signal is linearly related to the pressing distance, which can easily determine various details of the pressing process, providing possibilities for expanded button interaction methods."

[0004] However, in actual use, this patent has the problem of being inconvenient to replace when the internal pressing spring is damaged, resulting in a short keyboard lifespan, and there is room for improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a keyboard magnetic switch to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a keyboard magnetic shaft, comprising a key, each key including a button, a key core, and a spring, wherein the button is mounted and movably adapted to the key core, and the spring is sleeved on the outside of the key core; a magnetic shaft, comprising a fixed magnet and a movable magnet, wherein the fixed magnet is fixedly connected to the button and the movable magnet is fixedly connected to the key core, and the movable magnet is movably adapted to the fixed magnet; and a replacement component, wherein the replacement component is used to replace the spring when it is damaged.

[0007] As a further embodiment of this utility model: a keyboard magnetic shaft, wherein the replacement component includes a slide bar, a metal base, a retaining rod and a retaining bead, the metal base is movably sleeved on the outside of the slide bar, one end of the retaining rod is fixedly connected to the metal base and the other end is fixedly connected to the retaining bead, and the retaining bead is inserted into the inside of a spring and clamped to the spring.

[0008] As a further solution of this utility model: a keyboard magnetic shaft, which also includes an active magnet, the active magnet being disposed inside the key via a ball screw nut pair, and an adjustment groove for adjusting the ball screw nut pair being provided on one side of the key.

[0009] As a further embodiment of this utility model: a keyboard magnetic shaft, wherein a hinge seat is fixedly installed inside the key, the slide rod is hinged to the hinge seat via a hinge, and a movable knob is fixedly connected to one end of the slide rod to facilitate the rotation of the slide rod.

[0010] As a further embodiment of this utility model: a keyboard magnetic shaft, wherein the hinge seat has a mating groove inside, and a card seat is fixedly connected to one side of the metal seat, the card seat being adapted to the mating groove.

[0011] As a further embodiment of this utility model: a keyboard magnetic shaft, wherein a spring is fixedly installed inside the mating groove, and the card holder is adapted to the spring through an expansion joint.

[0012] As a further improvement of this utility model: a keyboard magnetic shaft, wherein a socket for the key to be adapted to the key socket is fixedly installed on the outside of the key.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Because the fixed magnet inside the key and the movable magnet inside the key core are positioned with their magnetic poles repelling each other, the magnetic resistance between the fixed and movable magnets in the key reaches its strongest when the movable magnet moves downward until its N pole is parallel to the fixed magnet's N pole. At this point, the user experiences a magnetic tactile feedback when using the key – a stronger tactile feedback that enhances the user experience. Similarly, when the key core is released, it springs back to its original position. This process, utilizing the fixed and movable magnets, strengthens the user's tactile feedback when pressing the key, resulting in a better overall user experience.

[0015] 2. Under normal conditions, this application allows the slide rod to be rotated to a position parallel to the hinge seat using the hinge base and hinge mechanism. In this position, the retaining ball rod will drive the retaining ball to extend into the spring's interval and lock the spring in place, thus assembling the spring and the key core. If the spring becomes fatigued after prolonged use, the slide rod can be moved from a position parallel to the hinge seat to a position not parallel to the hinge seat by turning the movable knob after the key is turned on and using the rotation of the hinge and hinge base. At this time, the retaining ball will disengage from the spring, leaving the spring simply clamped to the key core. Therefore, the spring can be replaced, thereby extending the service life of each key.

[0016] 3. By rotating the ball screw nut pair in the adjustment groove with your finger, the active magnet moves along the axial direction of the ball screw nut pair. This causes the active magnet to attract the metal seat that is slidably connected to the slide rod, and forces the ball to move in the spring's interlayer. This improves the engagement between the ball and the spring, and prevents the ball from becoming loose from the spring.

[0017] 4. When the metal seat moves the card holder into the mating groove, the spring piece in the mating groove can be used to clamp the card holder, thereby avoiding the problem of the metal seat shifting. At the same time, the expansion strength of the spring piece is less than the magnetic force strength of the active magnet that can control the movement of the metal seat, thus ensuring the effect of fine adjustment of the metal seat. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0019] Figure 2 This is one of the schematic diagrams showing the cooperation between the fixed magnet and the moving magnet in an embodiment of this utility model;

[0020] Figure 3 This is the second schematic diagram showing the cooperation between the fixed magnet and the moving magnet in this embodiment of the present invention;

[0021] Figure 4 This is one of the schematic diagrams of the internal structure of the button in the embodiments of this utility model;

[0022] Figure 5 This is a second schematic diagram of the internal structure of the button in an embodiment of this utility model;

[0023] Figure 6 This is an embodiment of the present utility model. Figure 4 Enlarged view of point A in the middle;

[0024] Figure 7 This is an embodiment of the present utility model. Figure 4 Enlarged view of point B in the middle;

[0025] Figure 8 This is an embodiment of the present utility model. Figure 5Enlarged view of point C in the middle;

[0026] Figure 9 This is a schematic diagram illustrating the fit between the card holder, the mating groove, and the spring in an embodiment of this utility model.

[0027] In the diagram: 1. Button; 2. Key core; 3. Spring; 4. Socket; 5. Fixed magnet; 6. Moving magnet; 7. Adjustment groove; 8. Ball screw; 9. Active magnet; 10. Hinge seat; 11. Slide rod; 12. Metal seat; 13. Movable knob; 14. Hinge; 15. Locking seat; 16. Mating groove; 17. Ball retaining rod; 18. Ball retaining; 19. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0030] In this embodiment of the utility model, a keyboard magnetic axis is provided; please refer to [link / reference needed]. Figure 1 , Figure 4 , Figure 5 and Figure 6The key includes a button 1, a key core 2, and a spring 3. The button 1 and the key core 2 are installed and movably adapted. Specifically, the button 1 is made of two mutually enclosing and fixed key sleeves. The key core 2 is located inside the button 1 and is movably connected to the button 1. Since the spring 3 is sleeved on the outside of the key core 2, pressing the key core 2 can compress the spring 3 and contact the Hall element at the bottom of the button 1 to achieve a pressing response. Then, the key core 2 will rebound and reset under the action of the spring 3, and continue to respond and be used when pressed again. Therefore, the spring 3 is repeatedly squeezed and stretched during this process, making the spring 3 more prone to damage than the button 1 and the key core 2 during use. Therefore, the embodiments of this application have designed the spring 3 to be easy to disassemble and modify, making the entire key easy to repair, replace and use, effectively extending the service life of the key. In addition, a socket 4 for the button 1 to be adapted to the key socket is fixedly installed on the outside of the button 1, so the assembly of the button 1 and the key socket can be faster and tighter.

[0031] Other embodiments of this novel invention: Please refer to Figure 2 and Figure 3 The magnetic shaft includes a fixed magnet 5 and a movable magnet 6. The fixed magnet 5 is fixedly connected to the button 1, and the movable magnet 6 is fixedly connected to the key core 2. The movable magnet 6 and the fixed magnet 5 are compatible when pressed. Specifically, when the key core 2 is pressed down, the movable magnet 6 fixed inside the key core 2 will also move down. Since the magnetic poles of the fixed magnet 5 fixed inside the button 1 and the movable magnet 6 fixed inside the key core 2 are arranged in a repulsive manner, the magnetic resistance between the fixed magnet 5 and the movable magnet 6 in the key reaches its strongest when the movable magnet 6 moves down until the N pole of the movable magnet 6 is parallel to the N pole of the fixed magnet 5. At this time, the user will experience a magnetic tactile feedback when using the key - that is, the user will feel a strong resistance, thus improving the user's experience. Similarly, after the key core 2 is released, the key core 2 will be pushed back up by the spring 3 until it returns to its original position. During this process, the fixed magnet 5 and the movable magnet 6 can enhance the user's experience, thereby strengthening the tactile feedback of pressing the key and achieving a good user experience.

[0032] Other embodiments of this novel invention: Please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The replacement component is provided for replacing the damaged spring 3. Specifically, the replacement component includes a slide rod 11, a metal seat 12, a retaining bead rod 17, and a retaining bead 18. The metal seat 12 is movably sleeved on the outside of the slide rod 11. One end of the retaining bead rod 17 is fixedly connected to the metal seat 12, and the other end is fixedly connected to the retaining bead 18. The retaining bead 18 is inserted into the inside of the spring 3 and is clamped to the spring 3. A hinge seat 10 is fixedly installed inside the button 1. The slide rod 11 is hinged to the hinge seat 10 through a hinge 14. One end of the slide rod 11 is fixedly connected to a movable knob 13 that facilitates the rotation of the slide rod 11. Therefore, in the normal state, the slide rod 11 can be rotated to a position parallel to the hinge seat 10 by using the hinge seat 10 and the hinge 14. At this position, the retaining bead rod 17 will drive the retaining bead 18 to extend into the gap of the spring 3 and make the retaining bead 18 lock the position of the spring 3, thereby assembling the spring 3 and the key core 2.

[0033] If the spring 3 becomes fatigued after prolonged use, the sliding rod 11 can be moved from a position parallel to the hinge 10 to a position not parallel to the hinge 10 by turning the movable knob 13 after turning the button 1 and using the rotation of the hinge 14 and the hinge seat 10. At this time, the retaining bead 18 will disengage from the spring 3, and the spring 3 will simply be clamped on the key core 2. Therefore, the spring 3 can be replaced, thereby extending the service life of the key.

[0034] Other embodiments of this novel invention: Please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 It also includes an active magnet 9, which is set inside the button 1 through a ball screw nut assembly 8. An adjustment groove 7 is provided on one side of the button 1 for adjusting the ball screw nut assembly 8. As the spring 3 moves, the spring 3 may inevitably loosen its engagement with the ball 18. At this time, by using a finger to rotate the ball screw nut assembly 8 in the adjustment groove 7, the active magnet 9 moves along the axial direction of the ball screw nut assembly 8. This causes the active magnet 9 to attract the metal seat 12 that is slidably sleeved on the slide rod 11 and force the ball 18 to move in the interlayer of the spring 3, thereby improving the engagement firmness between the ball 18 and the spring 3 and avoiding the problem of the ball 18 and the spring 3 becoming loose.

[0035] Similarly, when spring 3 needs to be replaced, the active magnet 9 can be used to loosen the engagement between the locking bead 18 and spring 3, thereby facilitating the replacement of spring 3.

[0036] Other embodiments of this novel invention: Please refer to Figure 9The hinge seat 10 has a mating groove 16 inside. A retainer 15 is fixedly connected to one side of the metal seat 12. The retainer 15 is adapted to the mating groove 16. A spring piece 19 is fixedly installed inside the mating groove 16. The retainer 15 and the spring piece 19 are adapted to each other through expansion. Therefore, when the metal seat 12 moves the retainer 15 into the mating groove 16, the spring piece 19 in the mating groove 16 can be used to clamp the retainer 15, thereby avoiding the problem of displacement of the metal seat 12. At the same time, the expansion strength of the spring piece 19 is less than the magnetic force strength of the active magnet 9 that can control the movement of the metal seat 12, thereby ensuring the effect of fine adjustment of the metal seat 12.

[0037] The working principle of this utility model is as follows: Since the magnetic poles of the fixed magnet 5 fixed inside the button 1 and the movable magnet 6 fixed inside the key core 2 are arranged in a repulsive manner, when the movable magnet 6 moves downward until the N pole of the movable magnet 6 is parallel to the N pole of the fixed magnet 5, the magnetic resistance between the fixed magnet 5 and the movable magnet 6 in the button reaches its strongest. At this time, the user will experience a magnetic tactile feedback when using the button, thus enhancing the user's experience. Similarly, after releasing the key core 2, the key core 2 will be pushed upward by the spring 3 until it returns to its original position. During this process, the fixed magnet 5 and the movable magnet 6 can enhance the user's experience, thereby strengthening the tactile feedback of pressing the button and achieving a better user experience.

[0038] In normal conditions, the sliding rod 11 can be rotated to a position parallel to the hinge 10 by using the hinge seat 10 and the hinge 14. At this position, the retaining rod 17 will drive the retaining ball 18 to extend into the gap of the spring 3 and make the retaining ball 18 lock the position of the spring 3, thereby assembling the spring 3 and the key core 2.

[0039] If the spring 3 becomes fatigued after prolonged use, the sliding rod 11 can be moved from a position parallel to the hinge 10 to a position not parallel to the hinge 10 by turning the movable knob 13 after turning the button 1 and using the rotation of the hinge 14 and the hinge seat 10. At this time, the retaining bead 18 will disengage from the spring 3, and the spring 3 will simply be clamped on the key core 2. Therefore, the spring 3 can be replaced, thereby extending the service life of the key.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A keyboard magnetic switch, characterized in that, The device includes a key, which includes a button (1), a key core (2) and a spring (3). The button (1) is installed and movably adapted to the key core (2), and the spring (3) is sleeved on the outside of the key core (2). A magnetic shaft, comprising a fixed magnet (5) and a movable magnet (6), wherein the fixed magnet (5) is fixedly connected to a button (1) and the movable magnet (6) is fixedly connected to a key core (2), and the movable magnet (6) is actuated to the fixed magnet (5); and Replacement component, which is used to replace the damaged spring (3).

2. A keyboard magnetic shaft according to claim 1, characterized in that, The replacement assembly includes a slide rod (11), a metal seat (12), a retaining rod (17), and a retaining bead (18). The metal seat (12) is movably sleeved on the outside of the slide rod (11). One end of the retaining rod (17) is fixedly connected to the metal seat (12), and the other end is fixedly connected to the retaining bead (18). The retaining bead (18) is inserted into the inside of the spring (3) and is clamped to the spring (3).

3. A keyboard magnetic shaft according to claim 2, characterized in that, It also includes an active magnet (9), which is set inside the button (1) via a ball screw nut pair (8). An adjustment groove (7) for adjusting the ball screw nut pair (8) is provided on one side of the button (1).

4. A keyboard magnetic shaft according to claim 3, characterized in that, The button (1) has a hinge seat (10) fixedly installed inside. The slide rod (11) is hinged to the hinge seat (10) via a hinge (14). One end of the slide rod (11) is fixedly connected to a movable knob (13) that facilitates the rotation of the slide rod (11).

5. A keyboard magnetic shaft according to claim 4, characterized in that, The hinge (10) has a mating groove (16) inside, and a card holder (15) is fixedly connected to one side of the metal seat (12), and the card holder (15) is adapted to the mating groove (16).

6. A keyboard magnetic shaft according to claim 5, characterized in that, A spring piece (19) is fixedly installed inside the mating groove (16), and the card holder (15) is adapted to the spring piece (19) by expansion.

7. A keyboard magnetic switch according to claim 6, characterized in that, A socket (4) is fixedly installed on the outside of the button (1) to adapt the button (1) to the key socket.

Citation Information

Patent Citations

  • Magnetic axis key and keyboard

    CN118448210A